The function of Ensembl gene identifier ENSG00000182511 (FES, FES proto-oncogene, tyrosine kinase) is as follows. Tyrosine-protein kinase that acts downstream of cell surface receptors and plays a role in the regulation of the actin cytoskeleton, microtubule assembly, cell attachment and cell spreading. Plays a role in FCER1 (high affinity immunoglobulin epsilon receptor)-mediated signaling in mast cells. Acts down-stream of the activated FCER1 receptor and the mast/stem cell growth factor receptor KIT. Plays a role in the regulation of mast cell degranulation. Plays a role in the regulation of cell differentiation and promotes neurite outgrowth in response to NGF signaling. Plays a role in cell scattering and cell migration in response to HGF-induced activation of EZR. Phosphorylates BCR and down-regulates BCR kinase activity. Phosphorylates HCLS1/HS1, PECAM1, STAT3 and TRIM28. {ECO:0000269|PubMed:11509660, ECO:0000269|PubMed:15302586, ECO:0000269|PubMed:15485904, ECO:0000269|PubMed:16455651, ECO:0000269|PubMed:17595334, ECO:0000269|PubMed:18046454, ECO:0000269|PubMed:19001085, ECO:0000269|PubMed:19051325, ECO:0000269|PubMed:20111072, ECO:0000269|PubMed:2656706, ECO:0000269|PubMed:8955135}.